CN201321448Y - Complete equipment for producing biodiesel - Google Patents

Abstract

The utility model relates to complete equipment for producing biodiesel, which can effectively solve the problem that the production of biodiesel can meet fuel demands. The technical proposal is that the outlet of a head tank is connected with a once esterification kettle by a first oil pump, a sheet frame filter, a temporary tank, a vacuum drying kettle and a second oil pump which are connected with each other in series sequentially; the once esterification kettle is connected with a secondary esterification kettle by the third oil pump; the secondary esterification kettle is connected with the vacuum drying pot; the vacuum drying pot is connected with a distillation kettle by a fourth oil pump; and the distillation kettle is connected with an oil product storage tank. The utility model has the advantages of simple structure, low cost, easy operation, high extraction efficiency, less energy, environmental protection and significant economic and social benefits.

Description

The suite of equipment of production biofuel

One, technical field

The utility model relates to chemical field, particularly a kind of suite of equipment of production biofuel.

Two, background technology

Along with world economy and industrial expansion, the energy scarcity problem that become international is to solve energy scarcity, is all trying every means in countries in the world.China is the country of an agricultural and livestock industry prosperity, and the high acid value waste oil (general designation bio oil) that abundant agriculture herding resource, particularly vegetables oil, animal oil is arranged and form with mistake has abundant source.At present, the existing bio oil of utilizing is made biofuel as make raw material with vegetables oil, and biofuel both can be used as a kind of biofuel, can be used as diesel-dope again.Over nearly 20 years, prepare biofuel as oil-fired surrogate, caused the extensive concern of countries in the world by vegetables oil.At present, Europe and North America mainly are the feedstock production biofuel with the vegetables oil, and Japan then prepares biofuel by reclaiming waste edible oil.Several tame biofuel factory has been set up in Europe, and largest factory is in Italy, and yearly capacity reaches 250,000 tons.Biofuel has been applied in tractor, automobile, the car as motor spirit.In Germany, the automobile that benz, BMW, masses and Adui manufacturer produce all allows to use biofuel, and need not refiting engine.After 1991, European and American countries is set up the biofuel standard of having issued in succession.1996, the biofuel council based on the production biofuel was also set up in Europe, and this has shown the formation of another infant industry.

So far, China is in the starting stage to the exploitation of biofuel, and especially the acidifying oil that transforms with refining oil factory refining leftover bits and pieces (soap stock, oil foot, deodorization slip out thing, useless carclazyte etc.) is the more rarely seen report of exploitation of raw material production biofuel suite of equipment.The value of acidifying oil is about 1/3～1/4 of vegetables oil, therefore, with acidifying oil or croude fatty acids for the raw material production biofuel than having more advantage with vegetables oil.He not only has price advantage, but also will remove the problem of environmental pollution of refining oil factory from, is a good thing of killing two birds with one stone.But at present for various reasons, utilize bio oil to make biofuel and also have many technical difficult problems, particularly equipment complexity, the technical requirements height, the cost height, not easy to operate again, therefore, how solve effectively that to utilize bio oil production biofuel be many technical barriers of being concerned about.

Three, utility model content

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of suite of equipment of production biofuel, can effectively solve the production of biofuel, satisfy needs problem to fuel, the technical scheme of its solution is, first oil pump of head tank outlet through being serially connected successively, flame filter press, temporary jar, the vacuum-drying still, second oil pump connects esterifying kettle one time, one time esterifying kettle connects the secondary esterifying kettle through the 3rd oil pump, the secondary esterifying kettle connects the vacuum-drying pot, and the vacuum-drying pot connects still kettle through the 4th oil pump, and still kettle is connected into the product oil tank through condenser, the utility model is simple in structure, cost is low, use easy to operate, extraction yield height, energy-conservation, environmental protection, economic and social benefit is remarkable.

Four, description of drawings

Accompanying drawing is a device structure connection box diagrammatic sketch of the present utility model.

Five, embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.

Shown in accompanying drawing, its structure of the utility model is, first oil pump 2-1, flame filter press 3, temporary jar 4, vacuum-drying still 5, the second oil pump 2-2 of head tank outlet through being serially connected successively connects esterifying kettle 6 one time, one time esterifying kettle 6 connects secondary esterifying kettle 9 through the 3rd oil pump 2-3, the secondary esterifying kettle connects vacuum-drying pot 12, vacuum-drying pot 12 connects still kettle 13 through the 4th oil pump 2-4, and still kettle 13 is connected into the product oil tank through condenser 14.

In order to guarantee the comprehensive utilization of result of use and raw material, be connected to the first compounding kettle 7-1 and the first water cooler 8-1 on the said esterifying kettle 6; Be connected to the second compounding kettle 7-2 on the said secondary esterifying kettle 9, be connected to air compressor machine 10 on the second compounding kettle 7-2; The second water cooler 8-2 through being connected, dilute methanol jar 11, the 5th oil pump 2-5, methanol rectifying tower 16, condenser 17 link to each other with methyl alcohol storage tank 18 successively in the methanol solution outlet of said secondary esterifying kettle 9.

Service condition of the present utility model is, 1, the bio oil pre-treatment: will contain the more bio oil of solid impurity and in head tank 1, be heated to 65-70 ℃, and get to flame filter press 3 with pump 2-1 and remove by filter impurity, and be put in temporary jar 4;

2, dry workshop section: the bio oil in temporary jar 4 utilizes vacuum to be admitted in the vacuum-drying still 5, under the 0.085-0.09Mpa vacuum, be heated to 110 ℃, change to stir and heated 30 minutes with per minute 30-60, moisture content is eliminated substantially, open recirculated water, during with oil cooling to 65 ℃, close water coolant, prepare esterification;

3, esterification: dried bio oil is transported in the esterifying kettle 6 with pump 2-2 from vacuum-drying still 5, squeeze in esterifying kettle 6 containing 3% vitriolic methyl alcohol among the compounding kettle 7-1, it is heavy by 10% that add-on is about oil, intensification 65-70 ℃, change stirring down with per minute 30-60, about 2 hours of esterification, acid value drops to 70% of stock oil acid value, one time esterification is finished, a reactant of esterification, the methyl alcohol that is evaporated in the reaction process continues to participate in reaction by being back to after the water cooler 8-1 cooling in an esterifying kettle 6, after reaction finishes, precipitate 60 minutes, emit waste water;

4, secondary esterification a: reactant of esterification in esterifying kettle 6 is squeezed in the secondary esterifying kettle 9 with pump 2-3, reactant of esterification is weighed 40% ± 5% methyl alcohol and squeeze into (methyl alcohol proportion 0.79g/mm among the compounding kettle 7-2 ³), and reactant of esterification is weighed 3% ± 0.2% sulfuric acid squeeze into and stir, be pressed in the secondary esterifying kettle 9 with air compressor machine 10 and react, esterification time 9-12 hour, temperature is controlled at 65-70 ℃, survey an acid value in the time of per 3, grasp extent of reaction, when treating that acid value is reduced to 5-10, illustrate to react and finish substantially, the secondary reactant of esterification, the methyl alcohol that is evaporated in the reaction process continues to participate in reaction by being back to after the water cooler 8-2 cooling in the secondary esterifying kettle 9, the reaction back that finishes is rising to the methyl esters temperature about 80 ℃ under the stirring state always, the methyl alcohol that has neither part nor lot in reaction in the methyl esters is recovered in the dilute methanol jar 11 after by water cooler 8-2 cooling, treat to continue after the rectifying to use, after the methyl alcohol Ex-all, with oily temperature control at 70 ℃, put into the oily same warm saline that weighs about 15%, stir the companion at a slow speed and wash, after water injection stir 4-5 minute static, approximately after 20-30 minute, waste water is bled off, wash 2-3 time, secondary reactant of esterification pH value is washed till neutrality substantially, washing is finished;

5, vacuum-drying: the secondary reactant of esterification in the secondary esterifying kettle 9 is inhaled in the vacuum-drying pot 12, be heated to 120 ℃ under the 0.085-0.09Mpa vacuum, change with per minute 30-60 and stir and heated 30 minutes, the basic Ex-all of moisture content makes water ratio≤3%;

6, distillation: the oil of the vacuum-drying in the dry still is got in the still kettle 13 with pump 2-4, be heated to 220 ℃ under the 0.085-0.09Mpa vacuum, biological bavin is evaporated out, after condenser 14 coolings, becomes liquid state, enters in the finished product storage tank 15;

7, methanol rectification: the methyl alcohol in the dilute methanol jar is squeezed into the rectifying tower 16 from the middle part with pump 2-5, and the control tower top temperature is at 60-70 ℃, distills out to enter in the methyl alcohol storage tank 18 after methyl alcohol cools off with condenser 17 to recycle, and methanol purity is 98% ± 0.5%.

The product that the utility model makes after testing, reach country fully to the diesel oil set quota, specifically be, (1) density: (20 ℃) kg/m≤0.84GB/T1884, (2) sulphur content % :≤0.2GB/T380, (3) cetane value :≤45GB/T386, (4) ash content: % (m/m)≤0.01GB/T508, (5) kinematic viscosity: (20 ℃ of mm2/s 3.0～8.0GB/T265, (6) condensation point ℃ :≤0GB/T510, (7) cold filter clogging temperature ℃ :≤4SH/T248, (8) acidity: mgKOH/100ml≤7GB/T258, (9) 10% steam excess carbon residue %:(m/m)≤0.3GB/T268.

Of the present utility model succeeding in developing, efficiently solve and utilize bio oil, the problem that comprises animal oil, vegetables oil and high acid value waste oil production biofuel, opened up the new way of fuel energy, realized animal oil, the comprehensive utilization of vegetables oil and the utilization again of high acid value waste oil, production cost is low, production cost can reduce more than 40%, can reduce facility investment more than 50%, transformation efficiency can reach 85%, and huge economic and social benefit is arranged.

Claims (4)

1, a kind of suite of equipment of production biofuel, it is characterized in that, first oil pump (2-1), flame filter press (3), temporary jar (4), vacuum-drying still (5), second oil pump (2-2) of head tank outlet through being serially connected successively connects an esterifying kettle (6), an esterifying kettle (6) connects secondary esterifying kettle (9) through the 3rd oil pump (2-3), the secondary esterifying kettle connects vacuum-drying pot (12), vacuum-drying pot (12) connects still kettle (13) through the 4th oil pump (2-4), and still kettle (13) is connected into the product oil tank through condenser (14).

2, the suite of equipment of production biofuel according to claim 1 is characterized in that, is connected to first compounding kettle (7-1) and first water cooler (8-1) on the said esterifying kettle (6).

3, the suite of equipment of production biofuel according to claim 1 is characterized in that, is connected to second compounding kettle (7-2) on the said secondary esterifying kettle (9), is connected to air compressor machine (10) on second compounding kettle (7-2).

4, the suite of equipment of production biofuel according to claim 1, it is characterized in that second water cooler (8-2) through being connected, dilute methanol jar (11), the 5th oil pump (2-5), methanol rectifying tower (16), condenser (17) link to each other with methyl alcohol storage tank (18) successively in the methanol solution outlet of said secondary esterifying kettle (9).

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